Color Image Enhancement Algorithm Based on Nonsubsampled Contourlet Transform

QIU Panpan; HE Xiaohai; LIANG Zifei; WU Xiaoqiang

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Color Image Enhancement Algorithm Based on Nonsubsampled Contourlet Transform

更新时间：2023-11-14

- Color Image Enhancement Algorithm Based on Nonsubsampled Contourlet Transform
- Advanced Engineering Sciences Vol. 45, Issue Z2, Pages: 145-149(2013)
- 作者机构：
  
  1. 四川大学望江校区电子信息学院图像信息研究所
  2. 四川大学电子信息学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013，
  
  Published Online：1 March 2013，
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邱攀攀,何小海,梁子飞,吴小强.基于非下采样contourlet变换的彩色图像增强算法[J].工程科学与技术,2013,45(Z2):145-149.

QIU Panpan, HE Xiaohai, LIANG Zifei, et al. Color Image Enhancement Algorithm Based on Nonsubsampled Contourlet Transform. [J]. Advanced Engineering Sciences 45(Z2):145-149(2013)
邱攀攀,何小海,梁子飞,吴小强.基于非下采样contourlet变换的彩色图像增强算法[J].工程科学与技术,2013,45(Z2):145-149. DOI：

QIU Panpan, HE Xiaohai, LIANG Zifei, et al. Color Image Enhancement Algorithm Based on Nonsubsampled Contourlet Transform. [J]. Advanced Engineering Sciences 45(Z2):145-149(2013) DOI：

摘要

中文摘要: 本文提出一种结合DCT变换和非下采样contourlet变换的彩色图像增强算法。算法根据非下采样contourlet变换后不同子带的特点对低频子带和高频子带采用不同的增强方法进行处理；为了修复增强过程中产生的颜色偏移，对增强后的图像进行了颜色修复；最后通过简单锐化即可达到很好的效果。由实验结果可知，算法提高了图像整体对比度的同时保留了完整的边缘细节信息和色彩保真度，从视觉效果和性能指标上来看都优于curvelet变换的方法和DCT变换的方法。

Abstract

Abstract: In this paper

a color image enhancement algorithm combined DCT transform and nonsubsampled contourlet transform was proposed. Since the difference of subband characteristics of nonsubsampled contourlet transform

different enhancement algorithms were proposed to enhance the low frequency subband and the high frequency subbands respectively. In order to fix the color shift

color restoration was applied to enhanced image. The simple sharpening was processed. From the result

the whole contrast was improved

while preserving more details and fidelity. It was better than DCT transform enhancement and curvelet transform enhancement from both visual and objective standard.

关键词

DCT变换curvelet变换非下采样contourlet变换彩色图像增强算法

Keywords

DCT transformcurvelet transformnonsubsampled contourlet transformcolor image enhancement algorithm

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四川大学制造科学与工程学院

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